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Mole fraction of a solute in an aqueous ...

Mole fraction of a solute in an aqueous solution is 0.2. The molality of the solution will be

A

13.88

B

1.388

C

0.138

D

0.0138

Text Solution

Verified by Experts

The correct Answer is:
A
`chi_(B) = 0.2. chi_(A) = 0.1`
`m = (chi_(B) xx 1000)/(chi_(A) xx Mw_(A)) = (0.2 xx 1000)/(0.8 xx 18) = 13.88`
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